Error Triggered on Refresh, Otherwise Fine

[merlinstardust]

The top level error is from simple schema, however the cause is from this package, seemingly from it trying to refresh itself. But I'm unsure why this is an issue

insert failed: Error: The side played by the User. is required
    at getErrorObject (http://localhost:3000/packages/aldeed_collection2-core.js?hash=18cc61915c0e22cac3180c5c8c9e0ac91bdd188a:522:15)
    at Mongo.Collection.doValidate (http://localhost:3000/packages/aldeed_collection2-core.js?hash=18cc61915c0e22cac3180c5c8c9e0ac91bdd188a:501:13)
    at Mongo.Collection.(anonymous function) [as insert] (http://localhost:3000/packages/aldeed_collection2-core.js?hash=18cc61915c0e22cac3180c5c8c9e0ac91bdd188a:259:25)
    at http://localhost:3000/packages/frozeman_persistent-minimongo2.js?hash=b744f4b7dd51ccfbd5385483afe4f7c5cc3eea16:2518:55
    at http://localhost:3000/packages/frozeman_persistent-minimongo2.js?hash=b744f4b7dd51ccfbd5385483afe4f7c5cc3eea16:477:13
    at http://localhost:3000/packages/meteor.js?hash=6d285d84547b3dad9717a7c89c664b61b45ea3d8:1117:22

The code that the error points to:

    refresh: function (init) {                                                                                    // 136
        var self = this;                                                                                          // 137
        self.store.getItem(self.key, function(err, list) {                                                        // 138
            if(!err) {                                                                                            // 139
                                                                                                                  // 140
                self.list = list || [];                                                                           // 141
                self.stats.added = 0;                                                                             // 142
                                                                                                                  // 143
                if (!! list) {                                                                                    // 144
                    var length = list.length;                                                                     // 145
                    var count = 0;                                                                                // 146
                    var newList = [];                                                                             // 147
                    _.each(list, function (id) {                                                                  // 148
                        self.store.getItem(self._makeDataKey(id), function(err, doc) {                            // 149
                            if(!err) {                                                                            // 150
                                if(!! doc) {                                                                      // 151
                                    var id = doc._id;                                                             // 152
                                    var foundDoc = self.col.findOne({_id: id});                                   // 153
                                                                                                                  // 154
                                    if(foundDoc) {                                                                // 155
                                        delete doc._id;                                                           // 156
                                        self.col.update({_id: id}, {$set: doc});                                  // 157
                                    } else {                                                                      // 158
                                        id = self.col.insert(doc); // <-- here
                                    }                                                                             // 160
                                                                                                                  // 161
                                    newList.push(id);                                                             // 162
                                }                                                                                 // 163
                            }                                                                                     // 164
                            count++;                                                                              // 165
                        });                                                                                       // 166
                    });          

And here

function executeCallback(promise, callback) {                                                                     // 445
    if (callback) {                                                                                               // 446
        promise.then(function (result) {                                                                          // 447
            callback(null, result);  // <-- here  
        }, function (error) {                                                                                     // 449
            callback(error);                                                                                      // 450
        });                                                                                                       // 451
    }                                                                                                             // 452
}